What you will have lost is calcium equivalent to 40% of the weight of calcium carbonate lost, i.e. 43mg/l making it 49mg/l.

It would be wise to repeat the Salifert kit test after an hour in case there is some calcium carbonate in suspension which wasn't in the test sample that has gone back into solution as calcium bicarbonate after absorbing some carbon dioxide from the atmosphere.

Without patience, life becomes difficult and the sooner it's finished, the better.

If you don't rack the water off the deposited calcium carbonate, as the water re-absorbs carbon dioxide it can be dissolved as calcium bicarbonate causing alkalinity to once more rise. This won't happen in a sealed container. It might be worth measuring alkalinity at various depths and times to confirm you can repeat that reduction. As you have seen, it will also drastically reduce the level of calcium.

Without patience, life becomes difficult and the sooner it's finished, the better.